[1] Zhang Tiehao, Liu Siqi, Zhang Yunpeng, et al. Microstructure and properties of double-sided friction-stir welded joint of 42 mm 6082 aluminum alloy profile[J]. Light Alloy Fabrication Technology, 46, 57-63(2018).

[2] Wang An, Zhang Linjie, Ning Jie, et al. Effect of welding speed on 2A97 aluminum-lithium alloy laser welded joints[J]. Laser Journal, 37, 98-102(2016).

[3] Yuan Linlin, Wang Wei, Chen Xiaoyu. Research progress of welding technologies for 2195 Al-Li alloy[J]. Welding and Joining, 38-42, 46, 63(2020).

[4] She Lvbo, Li Hao, Zhang Jianbo, et al. Study on crack propagation characteristics of Al-Li alloy welded structure[J]. Applied Laser, 46, 454(2020).

[5] [5] Jin Yang. Laser beam welding numerical simulation analysis of new AlLi alloy[D]. Nanjing: Nanjing University of Aeronautics Astronautics, 2020: 3236. (in Chinese)

[6] Jin Yan, Wang Shaogang, Zhao Li, et al. Laser beam welding of new type Al-Li alloy and microstructure and mechanical properties of welded joint[J]. Welding Technology, 48, 19-24(2019).

[7] Chen Genyu, Wang Bin, Zhong Peixin, et al. Laser scanning welding of 2060 Al-Li alloy with filler wire[J]. Transactions of The China Welding Institution, 41, 44-50(2020).

[8] Lei Z, Zhang K, Hu X, et al. Improvement of weld charac-teristics by laser-arc double-sided welding compared to single arc welding[J]. Journal of Materials Engineering and Performance, 24, 4518-4526(2015).

[9] Zhao Yaobang, Lei Zhenlong, Miao Yugang, et al. Welding characteristics of laser-arc double-sided welding for aluminum alloy[J]. Journal of Chinese Lasers, 38, 0603007(2011).

[11] Pang S, Chen L, Zhou J, et al. A three-dimensional sharp interface model for self-consistent keyhole and weld pool dynamics in deep penetration laser welding[J]. Journal of Physics D: Applied Physics, 44, 025301(2010).

[12] Ki H, Mohanty P S, Mazumder J. Modeling of laser keyhole welding: Part II. Simulation of keyhole evolution, velocity, temperature profile, and experimental verification[J]. Metallurgical and Materials Transactions A, 33A, 1831-1842(2002).

[13] Xv Q, Tian G, Zhang W, et al. Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire[J]. High Temperature Materials and Processes, 41, 92-110(2022).

[14] Assael M J, Kakosimos K. Reference data for the density and viscosity of liquid aluminum and liquid iron[J]. Journal of Physical and Chemical Reference Data, 35, 16(2006).

[15] Leitner M, Leitner T, Schmon A, et al. Thermophysical properties of liquid aluminum[J]. Metallurgical and Materials Transactions A, 48, 3036-3045(2017).